Forecast valid from: 00:00, Thursday 18 September 2025 until 00:00, Friday 19 September 2025
South to southwest winds will reach force 6 or higher at times on Wednesday night and tomorrow (Thursday) on all Irish coasts.
Southwest winds will continue to reach gale force 8 for a time on Wednesday night on Irish coastal waters from Erris Head to Bloody Foreland to Fair Head.
On Atlantic coasts early tonight
A depression of 982hPA is centred approximately 260 nautical miles northwest of Malin Head, extends a mostly fresh to near gale southwesterly airflow over Ireland. A frontal trough approaches the southwest coast of Ireland.
Gale Warning: In effect
Small Craft Warning: In effect
Heavy Swell (>4m) : yes
Wind: Southwesterly force 6 to gale force 8. Decreasing southwesterly force 5 to 7 imminent. Soon decreasing south to southwest force 4 or 5. Later backing southeasterly before veering southwesterly and increasing force 4 to 6, occasionally touching force 7 between Slyne Head and Malin Head.
Weather: Cloudy to fair. Later becoming cloudy with outbreaks of rain and drizzle and some mist and fog patches too.
Visibility: Decreasing moderate or poor in rain, drizzle, mist or fog. Otherwise Good.
Wind: Southwesterly force 4 to 6. Soon decreasing south to southwest force 4 or 5. Later increasing southwesterly force 5 or 6 and occasionally reach force 7 in the North Irish Sea.
Weather: Fair. Soon becoming fair or cloudy. Later becoming cloudy with outbreaks of rain and drizzle and some mist and fog patches too.
Visibility: Decreasing moderate or poor in rain, drizzle, mist or fog. Otherwise Good.
Wind: Backing south to southwest force 3 to 5, imminent. Soon increasing southerly force 5 or 6. Later increasing southwesterly force 6 or 7. Decreasing southwesterly force 4 to 6 by the end of the period.
Weather: Becoming cloudy with outbreaks of rain and drizzle imminent. Some mist and fog patches too.
Visibility: Decreasing moderate or poor in rain, drizzle, mist or fog. Otherwise Good.
Fresh to strong southwesterly winds, reaching near gale force at times in the east during Friday night. Decreasing light to moderate variable through Friday before becoming increasing moderate to fresh northerly in the southwest, south and southeast. Weather: Cloudy to fair with rain and drizzle at times, most widespread in the south and east. Occasional mist and fog.
Forecast issued at: 00:00, Thursday 18 September 2025
All times are local unless specified